Contact Greyline Performance | 435-200-4902

Get in Touch

You reached Greyline. A human will take it from here.

Whether you're chasing your first FT8 contact or your 300th country, fighting an HOA letter, or just wondering if a flagpole can really work 160 meters (it can, and we'll show you the physics) — welcome. The phone gets answered by a person who owns a soldering iron. Usually Jon, KL2A.

Everyone's in the right place here: the first-week FT8 operator watching the waterfall · the forty-year CW hand · the licensed YL building her station · the XYL buying for the OM · the agency comms officer with a requirements sheet. There are no dumb questions in this shop — only the ones you haven't asked yet.

Phone

435-200-4902

Sun Valley, Idaho. Real voice, real answers.

Order Status

Every antenna is hand-built to order. Check where yours is in the queue.

Order Status →

Setup & Manuals

Assembly guides, tuner docs, and YouTube walkthroughs.

Assembly Documents →

Use the form below for pre-sales questions, technical support, and general inquiries. For government and agency procurement, call directly: 435-200-4902

While You're Here — A Free Nugget

The quietest spot on your property is worth more than an amplifier.

Most operators put the antenna where it fits. The sharp ones put it where it's quiet. A Greyline needs only a 2-inch footprint and no radial field — which means you can place it in the corner of your lot farthest from the neighbor's solar inverter, the LED floodlights, and the plasma TV wall. On receive, 6 dB less noise beats 6 dB more power every single time: you can't work what you can't hear. Walk your property with a portable radio on 40M some evening and listen for the quiet corner. That corner is your antenna site.

Running FT8? This matters double for you. Weak-signal digital lives and dies on the noise floor — a quiet antenna site is the difference between a waterfall full of decodes and a waterfall full of wishes. Half the “my FT8 isn't working” emails we get are really “my antenna is parked next to a noise source” stories.

Where to Mount Your Greyline →

Address: 111 N 7th Street, Unit 924, Coeur d’Alene, Idaho 83814
Send images or arrange a call: Email us · 435-200-4902

While you wait for our reply: ride the KP4AA 24-hour contest replay, meet the operators in the Signal Report, or find out how much of your power actually reaches your antenna with the free feedline loss calculator.

We look forward to hearing from you. Ham Radio is fun again — and it starts with a hello.
73, The Greyline Performance Team

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25' VDA Flagpole

I was I little disappointed with the length of time to receive my order, however the product delivered was very high quality and very easy to assemble. Great DX right from the start. Strong signals into Europe on 100 watts.
Even broke in on a contest station in Kuwait with my first transmission. Definitely need the whip for 160 and 80 meters, but great performance 40-6 meters.
John was a great help with my technical questions.
Thanks for a gre

Mark, this is the first week we build for — strong signals into Europe on 100 watts and breaking into a Kuwait contest station on your very first transmission. That's the antenna doing its job for an operator who knows how to drive it.

Fair hit on the lead time, and we'll own it: every antenna is hand-built to order in small batches, and the wait is the honest cost of that. Current build status is always posted on our Order Status page so it's never a mystery — but we hear you, and shortening it without cutting corners is the part of the artisan model we work at hardest.

You're right about the low bands: the 9-foot DX Whip is exactly the 160/80 aperture the 24 is asking for, and it threads on in minutes.

And your review cut off mid-sentence at 'Thanks for a gre—' — we'll take the liberty of assuming it ended well.

73, Jon KL2A

20' Flagpole review

We are very pleased with our 20' flagpole with the 9' whip. We are able to FT8 all over the world with it. I love that we didn't have to put in radials. I haven't done a lot of voice contacting but have been able to reach over 1300 miles into Oklahoma, NW Montana, and Washington state from Arizona. I'm sure I will be able to reach farther than that with a little more time doing it.

Thank you for the report — and congratulations on the contacts. Arizona to Oklahoma, Montana, and Washington on the 20' DXF with the 9' whip is exactly the kind of all-band performance the system is built for, and FT8 worldwide is the proof of concept. The no-radials part isn't a shortcut — it's the design choice that lets the antenna work where most verticals can't. More time on the bands and you'll see the DX windows open up. Welcome to the Greyline community.
73,
Jon KL2A
Greyline Performance

24 foot flagpole antenna review

First I would start by thanking Greyline for excellent communication and support. Any questions I had were promptly answered and addressed.
The antenna assembly went quick and was pretty easy to follow. I can tune <1.5:1 for 10m to 40m. 80m is hit or miss but is probably due to my older antenna tuner as it tunes 80m some of the time. WSPR tests show good propagation with some contacts in Australia and South America from California (QTH). Made some FT8 contacts with East Coast US. Ran some high power SSB tests and all good. Overall very happy with the antenna. It is well manufactured.

Hi Phillip, thank you for sharing your detailed experience! We're thrilled to hear you're happy with the antenna's performance and our support. Enjoy your amateur radio adventures! Thank you — and that's a strong report. California to Australia and South America on WSPR is the kind of low-power-out, real-propagation evidence that tells you the system is working as designed. East Coast on FT8 and clean high-power SSB rounds out the picture. On 80M: you're right to suspect the tuner. The DXF is non-resonant by design and asks more of the ATU on the lowest bands; a tuner with a wider impedance range will close that gap. Worth a conversation if you want to chase it. Welcome to the Greyline community. Ham Radio is fun again!
73,
Jon KL2A
Greyline

reply to your request for an update.

Recieved the antenna in good shape. Checked out the video and manual for assemble. Worked on where the best place to install it. In the process of Ordering support items. ladder antenna and then I got sick. Currently I am on the mend and will keep you updated.
I do have a question regarding in ground laterals that many verticle antenna need. I did not see instructions for ground laterals?
Probably a few more questions, however both the video and manual are great.
Thank You
Roger Lutz [****]. [****]

Very Happy

I'm very happy with this antenna. It looks great as a flagpole. Easy to setup and get on the air. Works and performs very well.

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Contact Greyline Performance | 435-200-4902

You reached Greyline. A human will take it from here.

The quietest spot on your property is worth more than an amplifier.

Let customers speak for us